Andrew, ImClone Pull Nasdaq Down

Stocks lost ground, with Andrew and ImClone Systems helping to lead the Nasdaq Composite Index to another new closing low for the year, while Alcoa and Pfizer assisted in pushing the Dow Jones Industrial Average down a bit.

The Nasdaq fell 10.07 points, or 0.54%, to 1839.02, its third new low in the past four sessions. The Dow Jones Industrial Average shed 0.30 to 9961.92, after being down close to 50 points earlier in the session....